MPE/iX Commands Reference Manual (32650-90877)

Chapter 8 311
Command List VI
Commands LISTFILE thru =LOGON
volume- setname An artificial component of a volume set name used to maintain
backward compatibility with MPE V/E.
groupname Used only for compatibility with MPE V/E.
acctname Used only for compatibility with MPE V/E.
genindex A value from -1 to 32,767 specifying which generation of the home volume
set is to be reserved. A value of -1 indicates that any generation is
permitted. If omitted, the system ignores the generation when attempting
to satisfy the MOUNT request.
Operation Notes
When the console operator executes the LMOUNT command, all disk drives containing
members of the specified volume set become RESERVED. Each volume set is logically
attached to the drive until an LDISMOUNT command is executed, at which time the disk
drive is no longer reserved on a system-wide basis. A VSCLOSE may then be issued to
remove the volume set. (Refer to the VSCLOSE command in this chapter.)
Executing an LMOUNT command does not prevent users from issuing a MOUNT command for
the volume set in question. Users may issue a DISMOUNT command for the specified volume
set, but doing so has no effect; the LMOUNT command takes priority over a general user
command.
System users issue mount requests implicitly through their programs, or explicitly with a
MOUNT command.
If the mountable volumes facility was enabled with VMOUNT ON,AUTO, MPE/iX
automatically attempts to satisfy the mount request; the LMOUNT succeeds if the specified
volume set is physically connected to the system.
If the mountable volumes facility was enabled with VMOUNT ON (omitting the AUTO
parameter), you must reply to your own mount request, even though the volume set may
already be mounted and in use.
Volume sets in MPE/iX are not tied to groups and accounts. This is different from the MPE
V/E scheme of disk partitioning.
The MPE/iX naming convention for volume sets differs from the MPE V/E naming
convention for private volumes. MPE/iX volume set names may consist of any combination
of alphanumeric characters, including the underbar (_) and the period (.). The name must
begin with an alphabetic character and consist of no more than 32 characters.
Table 8-4. on page 311 illustrates the difference between naming conventions for MPE/iX
volume sets and MPE V/E private volumes.
Table 8-4. Command Acceptance of Naming Conventions - LMOUNT Command
Specify MPE V/E xxxMOUNT Command Accesses MPE/iX VSxxxxxx
Command Accesses
myset.grp.acct The volume set named myset.grp.acct. The volume set named
myset.grp.acct.
myset The volume set named
myset.logongrp.logonacct.
The volume set myset.